stock overview per purchase group in SAP MM

Dears

I request to cognize the champion script for this issue 

The lawsuit is procurement dept bargain materials to beryllium stocked but for Departments to beryllium used

I request to cognize the banal of each Department truthful what is the astir suitable solution enactment that this worldly is unsocial per department 

1- to make a fixed batch for each Dept In warehouse and GR each materials of the dept connected this batch 

2- Or to see the Departments arsenic a purchasing groups and support the purchasing radical for each worldly but erstwhile I execute MB52 OR MMBE the purchasing radical cant beryllium appeared astatine the report

3- Same similar fig 2 but make the departments arsenic a lab\office successful worldly master

Hope to get the champion solution and if determination is different 1 delight recommend